Machine for cutting sheets or layers.



E. l. BRDQCK. MACHINE FOR CUTTING SHEETS 0R LAYERS.

TEEE E E E. i. BRADDGCK.

MACHINE'WR. CUTTING sHeE AFPLiCATlON FILAED APR.

ITMJ@ 6 SHEES-SHEET 5.

Paened Nov. ly 191:3.

X5 35k EL 5.1. BRDDOCK. MACHINE FOR CUTTING SHEETS 0R LAYERS, AFPLSCATION FILED APR. 3. 19153,

@o 'oo E. If BRADDUCK. MACHINE EGR CUTING SHEETS OR LAYE APPLICATION FILED APR. 3, ISIS 6 SHEETSMSHEElr I5 5?? Mw di? 'EDWARD I.

BRADDOCK, OF VINCHESTER, MSSACHUSE'STS, ASSGNOR T0 willi et NASH CO., 0F BOSTON, MASSACHUSETTS, A CGREORTION 0F MII'E,

MACHINE FEDE CUTTING GPU LYERS.

Application 'Filed April 3, i915.

To all lwhom 'it may concern Be it known that l, Eni Ann l. BnAnnoCii, a citizen ott-he United States. residing in lVinchester. in the county of Middlesex and State of Massachusetts, have invented an improvement in Machines for Cutting Sheets or Layers, of which'the following description. in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates te a-I machine for cutting sheets or layers into strips or sec` tions, and has for its object to provide a superior machine for this purpose and one in which sheets or layers ot rigid material such as metal sheets or layers, or of flexible material such as cloth, paper, telt, and the like may be eut up into strips or sections.

The invention further has for its object to provide a machine in which very narrow strips or sections having a finished edge may he formed.

rlhese and other features of this invention will he pointed out in the claims at the end of this specification.

Figure l is a front elevation of a machine embodying this invention. Fig. :2, a cross section of the machine, showing the cutters in elevation. Fig. 3, a view like Fig. 2, showing the cutter carrying frame in an elevated position. Fig. e, a detail of one ci the cutters and its hanger. Fig. 5, a section on the line 5 5, Fig. l. Fig. 6. a section on the line G-t Fig. l. Fig. 7, a section on the line 7 7, Fig. l. Fig. 8, a section on the line 8-8, Fig. l. Fig. 9, a detail of one of the positively driven cutters shown in Fig. 2. Fig. l0, a. detail of one of the hearing blocks for the cutter shaft, and F ig. ll, a detail of one of the bearing blocks for the rotatable cutters.

The machine herein shown as embodying this invention is provided with means for feeding the sheet or laver of metallic or noninetallic material to the cutting mechanism employed to sever thel sheet into sections or strips, and is further provided with means for drawing the cut strips or sect-ions away from the cutting mechanism.

The means for feeding the sheet or layer consists as herein shown of a pair of cylinders or rolls l0, and the means for drawing the cut strips away from the cutting mech- Specfcaton of Letters Patent.

L un... fiatenteohet. ic, im

Serial No. 2,049.

anisin consists of a pair of cylinders lrolls l2.

W S'Sil ln the present instance l have illustrate-'i 'l six sets of cutters having one memh cutter of' erich set mounted on rote, shaft i3 to rotate therewith, and to he p i tively driven there-hy.

The cutters fast on the shaft- 13 as disks and are merked le, i5, i6, 19, and three of these cutters-coperatie three like disk cutters, 20, 2l. mounted on a. shaft 23 te rotate therewith. i "fourth cutter marked 1'? tast on the shaft 'l cooperates ivith a pair of cutting disks 25, which me hackvvardlv inclined with tion to .e cutting disk 1T, for a purpose es will be described. l'i'he tifth cutter ias-t on the shaft i3 is marked 18, and cooper ti, with a single cutting disk QG, which is i`nclined backwardly with relation to the cutting disk 18. The sixth cutter i9 tast on the shaft 13 cooperates with a pair of stationary cutters 27, 2S, which are secured to a stationarjf7 cutter carrier or block 29, and in the present instance the stationary cutters QT, .28 are shown as cutter hars, which are dovet-ailed into the hlock 29 and have backwardly inclined faces 30.

T he cutters mounted on the shaft i3 are positively rotated and assist the feed rolls 10 in feeding the sheet or laver throuch the machine, and when both cutters are positively7 driven, this feeding action is aug-` mented and enables the machine to cut sheets or layers which are thin and iiexilole as well as sheets `or layers of substantiallyT rigin materia'l.' ln other words, while the machine is especially adapted for cutting metal sheets, it is also capable of cutting sheets of peper. cloth, felt. or other non-metallic material when both cutters are positively driven,

Vihen only one of the cut-ters is positively rotated and the other cut-ter cooperating therewith is free to revolve or is stationary as shown at the right iii Fig. 2, the machine is capable of cutting sheets or layers of rigid material, such for instance as metal sheets.

The sets of cut-ters referred to are carried by a frame, which is normally interposed between the feeding and drawing rolls l0, 12, and is capable of being removed from its normal position so as to render the cutters accessible. The cutter carrying frame as herein shown, consists of a 'p wall or bar 3:2., a bottoni wall or har 33, and end walls or bars 3%-, 35, which may be separate pieces and secured together or which may be cast in one piece.

The top and bottom bars 32, 33 are provided with longitudinally extended slots 36, 37, see Fig. 6, for a purpose as will be described. T he end weils 3i, 35, support in suitable bearings, the rotatable shaft 13,

which is provided with a hey 38, by means of which the cutters mounted ,thereon rotate therewith, and some or all of the said cutters may be provided with hubs 39, see `Fig. 9, which are engaged with send-'circular recesses 40 in blocks or bars eil, which are rigidly secured to the bottoni wall 33 of the cutter carrying frame bv screws or bolts 42, extended'through cross hars 43 on the underside ci 'said bottoni wall, throngh the slot 3? in the latter and into threaded sockets in the bars or blocks il., see l? The shaft 13 may' be provided between the end walls 34:, 35, of the frame with one o'r more additional bearing .blocks del, and in the present instance, single bearing block fel ,is shown, which is provided with a circular opening e5 for the passage of the shaft 13, see Figs. 2.and l0, and is rigidly secured to thc lower bar or wail 83 of the frame by a cross bar 4:3 and bolt or screw 42.

in the present instance three of the disk cuttersli, l5, 16, on the shaft' i3, have cooperating with them three like disk cutters 20, 2l, 22, which are keyed or otherwise secured to the shaft 23 to rotate therewith, and said cutting disks are provided as shown, 'with hubs 3S) with which cooperate blocks or bars 41, which are rigidly secured to the top wall or bar 32 or' the cutter frame, by bolts or screws 42 extended through cross bars 43 and through the slot 3G in said 'wall or bnr and into threaded sockets in thcjgbars oibloelrs 4l, see Fig. (i. The shaft :23 has a bearing' in the end wall of the frame, and is supported within the said trani-e by one or more hearing bars or blocks ist, which are rigidly secured to the top wall 32 oi' said traine, by screws or bolts 42 which extend through cross bars and the slot 36 in said top wall 3:2. i v

The shafts 13, Q3, with the coperatinrr sets of cutters secured thereon are positively with a pinion 5l on the shaft 13, and thel latter pinion is designed to mosh with and be i driven by a gear or pinion 52, which in the present instance is shown as integral with a gear 53, loosely mounted on a shaft 5l, jonr nailed in a bracket or arm 55 attached to the side upright 5G of the framework of the machine.

The shaft 5'1- constitutes the iiiain or driving shaft oi the machine and ,is provided with a pulley 57 and a pinion 58, which meshes with a gear 59 on a shaft 60, suitably supported by the framework of the machine` and provided with a pinion 6l which meshes with and drives the gear 53.

The pinion 52 also meshes with and drives pinions or gears (i2, (i3, on the lower rolls 10, 12, and the gears or pinions 62,68, mesh ind drive gears or pinions 6%, G5, on the rolls 10,12, see Fig.

e sets ot positively driven or rotatable cutters 14,20, l5, 21, i6, 22, are suitahiy spaced apart to cut up into strips or sections, a metallic or nen-metallic sheet or layervwhich is passed between them, and they are especially serviceable in cutting up iron or ysteel sheets, and being positively driven or rotated, the said Sets of critters not only actto cut the metal sheets into strips or sections, but4 also serve as feeding disks for the cut strips,'aiid feed and guide the latter to the drawing rolls 12, thereby avoiding the necessity i of employing other means 'for guiding the cut strips to the drawing roils. i

W hile it may be Preferred to positively drive or rotate boti cutters when metal. sheets are to be out, it is not desired to limit the invention in this respect, as good lresults may be obtained with one of the cutters positively driven and the other outterfriction- `ally driven by the metal sheet, and this arrangement of cutters is illustrated by the set comprising the cutters i8, 26, the cutter Q6 being loosely mounted in a. supporting or bearing block 70, which is secured to the top wall or bar 32 of the cutter carrying frame, by the bolt or screw i2 extended through the cross ber 43 and through the slot 36 into a threaded socket in the block '70. When a freely revolving or loose cutter is einployed it Iis preferred to arrange the cutter so that its cutting 'face is inclined backwardly from the cutting' edge of the oooierating cutter,- which arrangement ef the cutters :affordsV a clearance'tor the cnt strip, and avoids the' formation of fins, slivers, hurs er rough edges, and produces a sn'iooth finished edge on the out strip, which can be'handled 'with bare hands without danger of being cut, while at the same time a superior product is obtained. This clearance feature is especially advantageous for cut-ting very narrow strips, as for instance strips as narrow as one mii of im inch, and by using two oppo- Ij: inclined cuiiers wid). an interiiiedine entier iiiee narrow strips muy be out siiiiiiiiziraeeusij-J.

The oppositely inclined entiers may be made es roiatzibie Cisk "utters 2i, Q5, which eoyerne rfih n intermediate disk cuiter i?, muy be sfiitioiiizry cutters Q5, which cooper-aie wiii the, iuermediiie ciisk entre if). The disk cutters 2, Q5, iiay be positireiy driven or iis herein shown they may be iiiouneci io turn 'freely in bearing blocks T, secured io the top wall of the euter ezurifiig frame by bolts or screws exeiided ti rough cross bars #i3 and tirough che sio; 355 izio threaded sockets in the blocks T0. and the stationary eu-e-rs 2T, 28, muy be (metziiieC.4 or otherwise secured to 'iie bearing bloei; 29, which is secured to the sop wail by a screw or ooit si-., extended through e. cross bar 43 and the siot 36 ini@ e threaded soene in iie bioek 29.

'it Yriii tius be seen thas Wish the machine herein shown, a metai or other sheet of sui-r s'mntiei wf `ii may" be cut up into sections or strips by the eiiiers mounted on the positively driven siius 13, emi one or more of these Strips may be sii further cutup into strips by 'olie cutters 18, 26, and srips thus produced may be em'; up into s iii narrower strips by the set of Cuiers 1T, 2, or tie. set i9, 2?, 28.

Vheii she. messi Strip is subi'eeted io the action of she set 17, E241-, 25 or he set 19, 2'?, 2S, the @einer strip which passes between the opposieiy ineiined cutters Je, 25, or 917, 28, has an opportimity to expand without becoming wedged betiveen the inclined entiers, and as :i result very narrow ssi-ips may be entier; he maschine.

it xiii be observed ihat the strain placed upon'iie entiers is transmitted to the Custer earryiiig frame, Whose lower wail 33 rests upon :i soiid portion of he framework of the machine, nameiy upon the cross bar 80, ee Fig, (3, and provision is made for solidly ,raking up ehe @op wall of she Gutter carving frame, which is ei'eeted by' a removbie presser bar 8l, which rests oir the cross bers supported by smid wail, and said presser bar is provided in its iower surface with i channel or slot S2 for he. reception or' the heads of the bois or screws 2 exeoded through sai top waii.

The presscr bar Si is' pressed dowii on 'the cross bars with mij: desireei pressure Within iiiiis, by means of ser 'ws 553, which are movabiy secured '33ers or webs part Vmf fue "11 posii i carry die s die euier carrying? from@ i i or soiidiv backed up, :mii :i very iigiii eonstriicioiz i ined which pre- Yeiis i ien in. iiis izier position, its free @porrei by ed to fue free iid of frame, see i2. The wish suitabe table sheets to be cui` are ses o to the feeiii otherwise.

The eilt c isiis reizi'ioii o heir coop given tire. proper ine 1 I their hangers er bestie@ block; eiirieii up surfaces 953,

a 1eg 94, Whic i is pivotshe e iter carrying machine is provided o Boil which the i" A J dotted illes iie lower surface oil the manger iso be given iiie same beve o ineii desir-eci.

it wir be cose-.Ned hs; in the maehilie herein =i comer of each ser, of cub ier is losijiv-f-:iy rotae, and tim'- die posicuters, some of which may be posiiireiy rotated, others iooseiy .mounte io burn fireeiy and ohers stationary, ami. es a lesui, of haring; ai least one cuer o' each sei posiiveiy driven, the machine is eapaiie of eut- -iig sheet of rigid material such as sheet metal, and also can used for eutiing less rigid or iiexibie she-ees, such as eiozh, feit, paper, shee read an faire iiire, and when used for his lasser purpose, ii is preferred to have both cutters positively driven or rotated. 'viien the sheets to be sus are rigid, such as iron or szeei shees, beh robaaioie cutters may be positively driven, or oniy one may oe posiii'feiy driven and the other stationary or free i0 urii.

in the present iiisn'oee, 'the inclined rotary iii-sers are represened as arranged to turn reeiy, but it is not {esired to iimit the nveiiion in this respec,

utters muy mounted driven'.

Wren rit iiisteiisi such is metal shees cui, ii may be preferred so use iiies one. member oi each seiof i rizis so a o 'De posiiveiy pires pin 90, sups us'ej: rotated eut-ters cooperar/e with other 'laire indizi-ed roi-my clearance provided by the inclined cutters, which prevents the metal strip being wedged or boundbetween the cutters, and thereby prevents the strips and especially wry narrow strips from curling up, and insures the rut strips passing;r forward in a liat. condi# tion, and this feature is true irrespective of whether the coperating cutter is positively driven or not. p

I have herein shown one construction of machine embodying the invention but it is not desired to limit the invention to thc par-- tieular construction shown.

Claims:

l. In a machine of the character described, in combination, feeding rolls and drawing rolls spaced apart, a cutter carrying frame located between said rolls and movable from between the same, a rotatable shaft carried by said frame, a cutter mounted on said shaft to rotate therewith, and a. cutter carried by said frame and coperating with the cutter rotatable with said shaft.

2. In a. machine of the character described, in combination, feeding rolls and drawing rolls spaced apart, a cutter carrying frame located between said rolls, a rotatable shaft carried by said frame, a cutter mounted on said shaft to' rotate therewith, and oppositely inclined cutters cooperating with 'the cutter rotatable with said shaft.

3. in a machine of the character described, in combination, a framework, a cutter carrying trarne supported thereby and movable with relation thereto, a rotatable shaft supported bysaid cutter-carrying frame, meansto rotate said shaft, a cutter mounted on said shaft to rotate therewith, and a cutter cooperating with the cutter rotatable with said shaft and inclined bacio' wardly from the path of rotation of the iirst mentioned cutter.

4;. In a machine of the character described, in combination, a rotatable disk cutter,'and cutters cooperating with the opposite sides of said disk cutter and inclined backwardly in opposite directions with relation -to the path of rotation of said disk cutteix 5. In a machine of the character described, in combination, a framework, a cutter carrying frame supportedthereby and movable with relation thereto, .rotatable shafts carried by said cutter-carrying frame,

coperating cutting disks mounted upon said shafts to rotate therewith, and means to rotate said shafts.

1 .6. In a machine,t of the character described, in combination, a framework, a cutter carrying frame supported thereby and movable with relation thereto, cooperating cutters carried by said. cutter-carrying frame, a presser bar located above said cuttercarrying frame to bear upon the same between its ends, ancmeans coperat-ing incassa with said framework, and with said presserC bar to secure said presser bar in lined relation to said cutter-carrying frame and to exert a pressure thereon.

'i'. ln a machine of the Character described, in combination, a rotatable sha ft, a disk cutter provided with a hub and mounted on said shaft to rotate therewith, a bearing block to engage said hub, means to which said bearing block is secured, and a cutter copcrating with'the said disk cutter.

8. In a machine oi' the character described, in combination, a rotatable cutter, and a pair of critters coperating therewithA and inclined backwardly with relation to the path of movement of said rotatable cutter.

9. In a machine of the character described, in combination, a cutter carrying frame provided with a top wall and with a bottom wall spaced apart, coperating cutters carried by said Walls and located between the same, means to solidly support said bottom wall between the ends of the latter, means to back up the said upper Wall, and means to cause 1said backing means to exert a pressure upon said upper wall between -its ends to firmly between its ends.

1,0. In a machine oat the character described, in combination, a stationary frame bucle up the latter I ters carried by said frame, a presser bar located between said uprights and capableof engaging the cutter-carrying frame between the ends of the latter for a substantial portion. of the length of the same, and means "carried by said uprights for engaging said presser bar to cansev itto exert a pressure upon the cutter-carrying frame..

l2. in a machine of the' character described, in combination, a stationary frame` work, a cutter-carrying frame having end walls and top and bottom Walls connected with said end' walls, said cutter-carrying frame being; supported by and movable with relation to said stationary framework, co-v operating cutters carried by saidcuttencar rying frame, bearing blocks for said cutters' secured to the top and. bci-tom walls of said frame, a removable presser bar capable o being placed upon the cutter-carrying frame and of engaging vthe latter between its ends, and means carried by said stationary framework to engage said presser oar and cause the latter to exert pressure upon the cutterearrying frame between the ends of the latter.

13. In, e, machine of the character clescribed, in combination, a stationary frumeyork provided with uprights spaced apart, e cutter-Carrying frame supported by said framework and movable with relation thereto between said uprights, cooperating outters carried by said frame, u presser bur located hetween'said uprights and capable of engaging the cutter-carrying frame between the ends of theilrttter for a Substantial portion of the length of the saine, cross l neme to this specification in the presence of 2) two subscribing witnesses.

EDWARD I. BRADDOCK. ll'itnesses lxs. H. CHURCHILL, J. Mricriii?` 

